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EAGE Workshop on Dead Sea Sinkholes – Causes, Effects and Solutions
- Conference date: 23 Sep 2012 - 25 Sep 2012
- Location: Amman, Jordan
- ISBN: 978-94-6282-055-5
- Published: 23 September 2012
21 - 23 of 23 results
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Diagnosis of Problematic Underground Conditions by Geophysical Techniques
By F.A.I. HamdiIntegration of Geophysical techniques lead to that definitive answers regarding subsurface conditions were provided to the end users: • Defining the scope of the site problem pointing to adverse strata and hazardous ground conditions. • Guidance to diagnosis of Ground Conditions Promoting Distress • Recommendation for the safety design and construction of engineering structures with or without the mitigation procedures for ground improvement. In this study the recent geophysical techniques used in civil engineering investigations and its integration into the overall geotechnical information in relation to detailed design, Road & Building construction, are discussed and illustrated with three case histories.
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The Sudden Subsidence (Sinkhole) in Musafah Highway, Abu Dhabi, Associated with Localized Collapse of Subsurface Cavity During Micro –Tunnelling
By M. HassounehGeophysical investigation was conducted to assess /evaluate the ground subsidence (sinkhole) that took place at the road way during the installation of new sewer pipe with micro-tunneling across the main road of Musafah in October 2011. A geophysical surveys were completed within this site during November, 11 and 12, 2012. The survey utilized Electrical Resistivity Tomography (ERT) and Multi Analysis Surface Wave (MASW) methods, to identify possible subsurface fractures/voids, less competent rock, or saturated areas that may contribute to the sinkhole development under the main Musafah road.
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Natural or Mankind Induced Cavities or Caves: Solutions to Live With Them or Do Something About Them
By G. JanssenPreconstruction soil improvement by compaction grouting in karst areas can be a cost effective alternate to conventional deep foundation or minipile foundation systerns. This paper presents a case history of compaction grouting for site improvement on portions of a new corporate campus in Chester County, Pennsylvania. The new campu include six-two and three story office buildings, and two-two tory parking structures situated on a site of approximately 809,371 square meter (200 acre). The majority of the site is underlain by bedrock of the Conestoga Formation, which typically includea. micaceous limestone, phyllite, and alternating bed of limestone and dolomite. Carbonite members of the Conestoga formation are soluble and, therefore, susceptible to sinkhole development, and are present under significant portions of the site.
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